Remove kutu flake and cleanup.

flake.lock

@@ -20,41 +20,7 @@
         "type": "github"
       }
     },
-    "kutu": {
-      "inputs": {
-        "nixpkgs": "nixpkgs"
-      },
-      "locked": {
-        "lastModified": 1783461814,
-        "narHash": "sha256-ycpzjXjMey4PlAFYeprz2nHI2azxkvEn3wNvHee+Yh0=",
-        "ref": "refs/heads/main",
-        "rev": "4b8599132f26d75bddfe613bcf9697ce0f91d212",
-        "revCount": 40,
-        "type": "git",
-        "url": "https://git.syedm.dev/syedm/kutu.rb.git"
-      },
-      "original": {
-        "type": "git",
-        "url": "https://git.syedm.dev/syedm/kutu.rb.git"
-      }
-    },
     "nixpkgs": {
-      "locked": {
-        "lastModified": 1783148766,
-        "narHash": "sha256-uslt2pqShTIXDdAHRHv2QkYLsVdY8Oqwz0EA48/RSM8=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "a50de1b7d8a586adc18d2395c19de7d6058e6030",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixos-26.05",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs_2": {
       "locked": {
         "lastModified": 1788179007,
         "narHash": "sha256-hn1oU2rue2SYK8dAr8+WNZWtbsz1S2W5mnHlSEuh3bo=",
@@ -73,8 +39,7 @@
     "root": {
       "inputs": {
         "home-manager": "home-manager",
-        "kutu": "kutu",
-        "nixpkgs": "nixpkgs_2"
+        "nixpkgs": "nixpkgs"
       }
     }
   },